Duo - "Invalid Certificate" or "Certificate Verification Failed"

Issue/Question

• I am getting an "Invalid Certificate when sending a push to my phone", What should I do?
• What does "Certificate verification failed" mean on the Duo app?

Environment

• Oregon State University
• Employee/Student
• Duo

Cause/Explanation

When the device is connected to a network which is not connected properly to the Internet, the Duo application on the phone encounters an error "Certification Invalid or Network issue."

Resolution

1. Connect to OSU_Secure, eduroam or Visitor
2. Close the Duo app and open it again
3. Send the Duo push again and it will work.

For more troubleshooting steps, see the Duo knowledge base: https://help.duo.com/s/article/4010?language=en_US

For assistance, contact the Service Desk.